Plow.



A. C. LOVELL.

- PLow. y APPLICATION FILED MAR. '28.11 91 2 SHEETS-SHEET l.

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v Patented Oct. 2,1917.

`AT c. LOVELL.

PLOW.'

APPLICATION FILED MAR. 28. 1917.

Patented oet. 2,1917.

2 SHEETS-SHEET 2.

narran erarss ramener onirica.

ADELBERT c. LovELL, or iviceoMB, oHIo.

PLOW.

Application filed March 28, 1917.

To all 'whom 515 may concern.'

Be it known that I, ADELBERT C. LovnLL, a citizen of the United States,residing at McComb, in the `county of I-Iancock and State of Ohio, haveinvented certain new and useful Improvements in f Plows, of which thefollowing is a specifica-tion.

This invention relates to plows, and is particularly directed to a typeof structure wherein the corners of a plowed field may be kept in auniform condition.

lVhen rounding` a corner, my structure is designed to make the yturns sothat all of the turns are of the same radius as opposed to beingconcentric with each other. There all of the turns are of the sameradius, there is necessarily a wider space between the two curves thanthere is on the straight way course, and it is to this end that myinvention ysupplies a structure for also plowing this excess cornerground. To attain this, I have so arranged my structure that a noi'-mally idle plow follows the furrow wheel, this furrow wheel beingmounted to be movable outwardly during the act of rounding a Y corner ormaking a curve which permits the idle plow to come into operation toplow the additional ground thus exposed.

A further object of my invention resides inl a structure whereby, whenthe furrow wheel has moved out a predetermined distance approximatelyequaling the width of an additional furrow, the steering angularity ofthe land wheel is altered to prevent any further excess ground beingdirected t0- ward the plows.

Other objects of my invention will appear in the following detaileddescription of the accompanying sheets of drawings, wherein similarcharacters of reference ldesignate corresponding parts, and wherein:

. Figure 1 is a top plan view of a wheel plow embodying my invention,

Fig. .2 is a side elevationv of the structure shown in Fig. 1,

Fig. 3 is a top plan view of the axle portion of the structure shown inFig. 1, but showing the furrow wheel moved outwardly its full limit ofmovement and also showing the steering angularity of the land wheel aschanged,

Fig. 4 is a detail sectional View of the manner of connecting certain ofthe parts, and

Fig. 5 is a section taken approximately on line 5-5 of Fig. 1.

Specification of Letters Patent.

tion.

Patented Oct. 2, 1917.

serial No. 158,093.

front ends by means of the tie piece shown at 7. The beam l, at itsrear, carries a rearwardly projecting member 8 to which the rear wheel 9is connected. |Ihis main framework also includes an axle 10 from whichthe plow beams are supported by means of the bent pipes or rods 11 andby means of vthe upwardly projecting finger 12. In this manner, a rigidstructure for supporting the plow bladesis formed, the manner ofattaching the pipes l1 with the axle being shown in detail in Fig. 4,wherein two ordinary T fittings 13 and 14 are joined by means of theconnecting nipple shown at 15.

The description thus far is common to most types of tractor ,plows andin order to adapt it to my invention, I have provided a furrow truck 16which is slidablymounted upon the axle l0 and whose normal position isdirectly in front Mof the additional plow blade 4. As the plow is pulledthrough the field, the furrow truck rides in the last furrow, thusrendering the jplow blade 4 idle while the remaining blades 3 cut apairof additional furrows. When a curve in the previously curved furrowor a corner is reached, it is the intention to keep the radius the sameinstead of concentric. The distance between the last furrow and the newfurrow on the curved portion must, therefore, be greater than thecorresponding distance on a straight way course. It is at this time thatthe idle plow 4 comes into opera- The furrow truck 16 is designed tofollow in the furrow and as the curve is reached, this furrow truckispulled outwardly, which permits the idle plow to become effective. lVhenthis furrow truck has reached the limit of its outward movement, whichis equivalent to the width of a furrow, the connection between thefurrow wheel and the land wheelv becomes effective to change thesteering angularity ofthe land wheel to prevent the furrow truck fromcoming out of the furrow.

In Figs. 1, 2 and 5, I have shown the construction of this furrow truckas comprising a pair of wheels 17, although it will be understood thatthis is only my preferred construction and that it is not absolutelyessential to have two. These two wheels are connected on one side bymeans of a U-shaped member 18 onto the legs of which the wheels arejournaled and a connecting piece 19 on the opposite side ofthe wheels.Onto the U- shaped member 18 there is rigidly connected a rollercarrying bracket 40 formed in sections and bolted together as is shownat 20, the roller 2l being supported therein to roll in connection withthe axle l0. Upon the opposite side of the truck, there is also locateda bracket member 22 which rotatably carries a second roller 23. In thismanner, the furrow truck is slidably mounted in connection with theaxle. The opposite end of the axle carries a land wheel 24 which ispivotally-mounted in connection therewith by means of the knuckle jointshown at 25. However, this land wheel is permanently mounted inconnection therewith as far as,

any sliding movement is concerned, the only movement permitted it beinga pivotal or a steering movement. f

The amount of outward movement of the furrow truck is governed'by meansof the collar shown at 26 which collar is slidably mounted upon the axleand is connected to the furrow truck by means of the rod connectionshown at 27. The supporting fitting 13 is located upon the axle adistance to limit the outward movement of the collar 26 a distanceequaling the width of a furrow and in order to automatically return thefurrow truck after the corner or curve has been passed, I have providedthe spring 28. This spring 28 is secured to the plow beam 1 at one endand to a lever 29 at its opposite end, this lever beingl preferablyhinged as shown at 30 and being pivotally connected at its opposite endsto the pipe support 11 and collar 26 respectively. Thus, when the furrowtruck leaves the curved furrow, the spring 28 acts to pull the trucktoward the land wheel and its limit of movement is governed by the hub31 of the supporting finger 12.

In order to change the steerin angularity lof the land wheel 24 when theurrow truck lhas reached its outward limit of movement, I have' provideda lost motion connection between the pair ofrods 32 and 33 connected anadjustable collar shown at 38. Thus as the furrowV truck moves outwardlyagamst the tension of the spring 28, it pulls the collar 26 with it,thus causing a sliding engagement between the two rods 32 and 33. Whenthe head 37 of the rod 33 engages the collar 38 on the rod 32, the link34 is caused to move about its pivot. This in turn causes the arm 35which is rigidly connected with the land wheel, to move about theknuckle pivot 25 because of the link connection 36. In this manner,afterV the truck has reached its outward limit of movement, the steeringangularity of the land wheel is altered to cause the plow as a whole tomove in a circular direction independent of the draft thereon. Afterthe'corner has been rounded, the spring 28 acts automatically to retractthe plow truck and during this action, the lost motion rods 32 and 33are again made to telescope until finally the head 37 on the rod 33engages the link 34 and, assisted by a spring 39 the parts again returnto the position shown in Fig. v1, wherein the land wheel is headed in astraight forward direction. At this time, the plow blade 4 againrunsidle, it beinm directly in rear of the furrow truck ancI therefore,ruiming idle in the furrow cut on the preceding trip.

From the foregoing description, it will appear that I have provided astructure of considerable utility wherein the furrow truck 16 is causedto automatically move outwardly upon its axle l0 to permit the normallyidle plow blade 4 to come into play. This low blade 4 only operates atvthe time the p owis rounding a corner or making a curve and operateseach time the furrow truck moves outward upon its axle. This outwardmovement is caused primarily by the truck following in the furrow cut onthe preceding trip and after the corner or curve has been passed thespring 28 acts to again retract the furrow truck to its normal position.

`What I claim, is:

1. A vwheel plow n comprising a main framework, a plurality of plowblades mounted thereon, a land wheel permanently mounted in connectiontherewith, a furrow wheel mounted in connection therewith capable oflateral movement, one of said blades being located directly in rear 4ofsaid furrow wheel when the latter is in its normal position and beingeffective only when said furrow wheel is moved outwardly.1 2. A wheelplo-w comprising a main framework, a plurality of plow blades mountedthereon, a land wheel permanently mounted in connection therewith, afurrow wheel mounted in connection therewith capable of lateralmovement, one of ysaid blades being located directly in the rearl ofsaid furrow wheel when the latter is in its "when said furrow wheel ismoved outwardly, and means operated by the said furrow wheel when it hasreached the limit of its outward movement for altering the steeringangularity of said land wheel.

4. A wheel plow comprising a main framework, a plurality of plow bladesmounted thereon, a land wheel permanently mounted in connectiontherewith, a furrow wheel mounted in connection therewith capable oflateral movement, one of said blades being located directly in the rearof said furrow wheel when the latter is in its normal position and beingeffective only when said furrow wheel is moved outwardly when a curve inthe furrow is encountered, and means for automatically returning saidfurrow wheel to its normal position when the curve in the furrow ispassed.

5. A wheel plow comprising a. main framework, a plurality of plow bladesmounted thereon, a land wheel permanently mounted in connectiontherewith, a furrow wheel mounted in connection therewith capable oflateral movement, one of said blades being located directly in the rearof said furrow wheel when the latter is in its normal position and beingeffective only when said furrow wheel is moved outwardly when a curve inthe furrow is encountered, and spring means for automatically returningsaid furrow wheel to its normal position when the curve in the furrow ispassed.

6. A wheel plow comprising a main framework, a plurality ofv plow bladesmounted thereon, a land wheel permanently mounted in connectiontherewith, a furrow wheel mounted in connection therewith capable oflateral movement, one of said blades being located directly in the rearof said furrow wheel when the latter is in its normal position and beingeffective only when saidf'urrow wheel is moved outwardly when a curve inthe furrow is encountered, spring means for automatically returning saidfurrow wheel to its normal position when the curve in the furrow ispassed, and means operated by said furrow wheel when it has reached thelimit of its outward movement for altering the steering angularity ofsaid land wheel.

7. A wheel plow comprising a main framework including an aXle, aplurality of plow blades mounted on said framework, a land wheelpivotally mounted on said axle, a furrow wheel slidably mounted on saidaXle,one of said blades being located `directly in the rear of saidfurrow wheel when the latter is in its normal position and beingeffective only when said furrow wheel is moved outwardly, a leverconnection between said furrow wheel and said framework, a springbetween said lever and said framework normally urging said fur row wheelto its normal position, and a connection between said furrow wheel andsaid land wheel to alter the steering angularity of said land wheel whensaid furrow wheel has reached the limit of its outward movement.

In testimony whereof I afliX my signature in presence of two witnesses.

ADELBERT C. LOVELL.

Witnesses:

R. A. ROETHER, H. W. STOKER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

